Purdy points out that under Major League Baseball rules, the transfer of control of a team -- like the one between the Bill Neukom and Larry Baer -- must be approved by 75% of the MLB's 30 owners.

It also takes a 75% vote to approve a plan to move the A's to San Jose.

Purdy says right now the Giants can block that vote by simply getting 25% of owners to side with them. He argues if the A's want to play hardball, they could in turn block a vote on the Giants transfer of power until the A's move to San Jose is approved.

That's a pretty tough move.

So Purdy has made another suggestion. He says Wolff could simply demand that the MLB's "Blue Ribbon Committee" release its findings on the A's/Giants territorial rights in the Bay Area. Once those are released, Wolff has the right to push for a vote on a move.